Tracking nitrite's deviation from Stokes–Einstein predictions with pulsed field gradient 15N NMR spectroscopy
文献信息
Trent R. Graham, Yihui Wei, Eric D. Walter, Emily T. Nienhuis, Jaehun Chun, Gregory K. Schenter, Kevin M. Rosso, Aurora E. Clark
Predicting the behavior of oxyanions in radioactive waste stored at the Department of Energy legacy nuclear sites requires the development of novel analytical methods. This work demonstrates 15N pulsed field gradient nuclear magnetic resonance spectroscopy to quantify the diffusivity of nitrite. Experimental results, supported by molecular dynamics simulations, indicate that the diffusivity of free hydrated nitrite exceeds that of free hydrated sodium despite the greater hydrodynamic radius of nitrite. Investigations are underway to understand how the compositional and dynamical heterogeneities of the ion networks at high concentrations affect rheological and transport properties.
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Chemical Communications

ChemComm publishes urgent research which is of outstanding significance and interest to experts in the field, while also appealing to the journal’s broad chemistry readership. Our communication format is ideally suited to short, urgent studies that are of such importance that they require accelerated publication. Our scope covers all topics in chemistry, and research at the interface of chemistry and other disciplines (such as materials science, nanoscience, physics, engineering and biology) where there is a significant novelty in the chemistry aspects. Major topic areas covered include: Analytical Chemistry Catalysis Chemical Biology and medicinal chemistry Computational Chemistry and Machine Learning Energy and sustainable chemistry Environmental Chemistry Green Chemistry Inorganic Chemistry Materials Chemistry Nanoscience Organic Chemistry Physical Chemistry Polymer Chemistry Supramolecular Chemistry














